Colored micro-smoke fireworks bright beads and preparation method thereof

Abstract

The invention belongs to colored micro-smoke bright beads for aerial shells, and particularly relates to colored micro-smoke fireworks bright beads and a preparation method thereof. The preparation method of the colored micro-smoke fireworks bright beads comprises the following steps: a, uniformly mixing dehydrated nitrocellulose, an oxidant and a colored luminescence reagent, adding a stabilizerdissolved solvent, and performing plasticizing to obtain a plasticized material; b, extruding and forming the plasticized material obtained in the step a, performing air drying, cutting and drying andcoating ignition powder to obtain the colored micro-smoke fireworks bright beads. The micro-smoke fireworks bright beads are mainly applied to aerial shells and have the advantage of little smoke discharge.

Description

technical field [0001] The invention belongs to the colored micro-smoke bright beads for high-altitude fireworks bombs, and in particular relates to a colored micro-smoke fireworks bright beads and a preparation method thereof. Background technique [0002] In the production process of traditional fireworks bright beads, potassium perchlorate is basically used as the oxidant, dyes such as strontium carbonate, barium nitrate, copper oxide, cryolite are used as colored luminescent agents, alloys are used as the main combustibles, and PVC and other additives are used. Adhesives such as colorants and phenolic resins are produced through processes such as shot blasting. The production process of fireworks bright beads is mainly divided into two steps. The first step is the production of bright pearl effect medicine cores. Usually, various powdery raw materials are fully sieved, and then the materials are added to the material maker, and a small amount is sprayed. The water is us...

AI Technical Summary

Problems solved by technology

[0006] 3. Due to the high oxidant content, loose interior and strong hygroscopicity of this kind of bright beads after production, the discharge performance will generally decrease or even fail after long-term storage.

[0007] 4. The inner core of bright beads is made of powdery raw materials and coated with a certain amount of water to form a spherical shape of a specific size and then dried. The production method is primitive, the production efficiency is low, and the production capacity is low.

[0008] From the above analysis, in the production process of traditional bright beads, in order to improve the burning rate and illuminance of bright beads, a large amount of oxidizers and metal powders containing metal ions are used, and adhesives that cannot be completely burned are used at the same time, resulting in bright The beads produce a lot of smoke during the discharge process, which is especially obvious in the large-scale discharge site where the discharge is concentrated, and it will also cause air pollution near the discharge site

[0009] In addition, from the perspective of safety, there are a lot of dust and solvents that are harmful to the body in the working environment of the production of bright beads. Long-term operation in such a working environment will also cause great harm to the physical and mental health of the operators.

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